Know the Roman attitude towards other religions

The government, and the Romans in general, tended to be tolerant towards most religions and cults. Some religions were banned for political reasons rather than dogmatic zeal, and other rites which involved human sacrifice were banned.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; ethnocentric;